temsor API
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Turkish Business Days

Adds business days or counts them between two dates, accounting for Turkish public and religious holidays including half-day eves.

POST /v1/tr/business-days · 1 credit · deterministic

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POST/v1/tr/business-days 
{
  "start": "2026-03-16",
  "addDays": 10
}
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Why this exists

Built for hostile input

A Turkish address arrives as "Cd." or "Cad." or "Caddesi", with the flat number glued to the building number. Generic parsers drop half of it silently. This one tells you what it could not place.

History cannot be backfilled

The exchange-rate archive grows every business day and each point keeps its source URL and content hash. A competitor can read today’s bulletin too — nobody can produce last quarter’s.

You only pay for work

Repeated inputs come from cache and cost zero credits. If a response ever fails its own schema, the call is refunded automatically.

Endpointsexpand any row to see the parameters and call it live

Calendar1

/v1/tr/business-days Turkish Business Days deterministic 1 credit

Adds business days or counts them between two dates, accounting for Turkish public and religious holidays including half-day eves.

Ramadan and Sacrifice feasts follow the Hijri calendar and cannot be derived reliably by formula, so announced dates are read from a table; years without an official announcement are returned with `confirmed:false` rather than guessed silently. For delivery promises, SLA clocks, payment terms and shipping estimates.

Parameters

start* string Başlangıç tarihi (YYYY-AA-GG).
addDays integer Bu kadar İŞ GÜNÜ ekle/çıkar.
end string Verilirse aradaki iş günü sayılır.
countHalfDaysAsWork boolean Arife yarım günleri iş günü sayılsın mı? default true
POST/v1/tr/business-days 
{
  "start": "2026-03-16",
  "addDays": 10
}
no request sent yet
Press Run to call the live API from your browser.

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The API key is e-mailed the moment payment clears. Upgrades keep the same key, so your integration is never broken.

Use it from an AI assistantthe same catalogue, exposed as MCP tools

Every endpoint is also published over the Model Context Protocol, so Claude, ChatGPT or your own agent can call it directly — no glue code, no wrapper functions. The assistant sees the same input schemas and the same metering.

Currently 11 tools. New endpoints appear automatically; nothing to update on your side.

claude_desktop_config.json

{
  "mcpServers": {
    "temsor": {
      "url": "https://api.temsor.com/mcp",
      "headers": { "x-api-key": "fk_live_…" }
    }
  }
}

Quickstart

Official client: npm install temsor-api · npmjs.com/package/temsor-api

Node.js

import Client from "temsor-api";

const api = new Client({ apiKey: KEY });
const r = await api.${(() => {
  const first = apis[0];
  return first.slug.split(/[/-]/).map((p, i) => (i === 0 ? p : p[0].toUpperCase() + p.slice(1))).join('');
})()}(${esc(JSON.stringify(apis[0].examples[0]?.input ?? {}))});
console.log(r, r.$meta);

cURL

curl -s https://api.temsor.com/v1/tr/business-days \
  -H "content-type: application/json" \
  -H "x-api-key: fk_live_…" \
  -d '{"start":"2026-03-16","addDays":10}'

JavaScript

const res = await fetch("https://api.temsor.com/v1/tr/business-days", {
  method: "POST",
  headers: { "content-type": "application/json", "x-api-key": KEY },
  body: JSON.stringify({"start":"2026-03-16","addDays":10})
});
const { data } = await res.json();

Python

import httpx
r = httpx.post("https://api.temsor.com/v1/tr/business-days",
    headers={"x-api-key": KEY},
    json={"start":"2026-03-16","addDays":10})
data = r.json()["data"]